Abstract
Tetralogy of Fallot (TOF) consists of four cardiac changes: interventricular communication, pulmonary stenosis, aortic dextroposition and right ventricular hypertrophy. The prevalence is 0.1 per 1,000 live births. A primiparous mother with gestational age of 38 weeks came to the emergency. At the time, it was verified in her twin pregnancy that one fetus had TOF, thus a pregnancy interruption was scheduled for the following day. In the neonatal physical examination of both, localized acrocyanosis, regular heart rhythm with the [...]
Highlights
Tetralogy of Fallot (TOF) is a common congenital heart malformation, with an incidence of 0.1/1,000 newborns.[1]
The TOF diagnosis can be performed on a prenatal fetus by ultrasound and later confirmed with fetal echocardiography
The diagnosis is only made after birth due to the child's clinical condition, which can vary depending on the degree of obstruction at the level of the right ventricular outflow tract
Summary
Tetralogy of Fallot (TOF) is a common congenital heart malformation, with an incidence of 0.1/1,000 newborns.[1] The disease was first described in 1671 by the Danish anatomist Niels Stens on a fetus with ectopia cordis. The prenatal diagnosis has several advantages for the child and family, it still does not match most cases.[2]. Robinow’s, Shprintzen’s, conotruncal anomaly, and Pentalogy of Cantrell, and may even be associated with teratogens, such as trimethadione, thalidomide, and phenylketonuria. When it occurs alone, it is rarely Family-based.[5] The incidence of congenital heart defects among children is only 6/1,000 live births, compared to 17.2/1,000 in monozygotic twins, as compared to dizygotic twins, where the incidence is approximately 8/1,000.6
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